vocal spectrum lab

Vocal Spectrum Analyzer

01Same note

Hold one note for 2-3 seconds before comparing shapes.

02Same vowel

Changing ah, eh, or ee can move F1/F2 a lot.

03Fixed mic distance

Moving closer or off-axis can change H1 and upper harmonics.

Spectrum

H1-H5 harmonics and F1-F3 formant candidates

Idle
Waiting for signalStart the microphone. Press Space to freeze the graph.

Capture

Save the visible graph as an image and measurement

local

Capture sounds you want to compare. Raw voice audio is not saved.

Start the microphone, then capture the moment you want to compare.

Reference examples

See common spectrum tendencies by sound model

These are synthetic models for learning how to read a graph. They are not voice-type diagnoses.

H1, H3, H5

H means harmonic. H1 is the main pitch; H3 and H5 help you compare clarity and closure tendencies.

F1, F2, F3

F means formant candidate. Vowels move these resonance peaks and can make certain harmonics stand out.

Local processing

Your microphone audio is analyzed in the browser. Raw voice audio is not uploaded to a server.